MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Orthopnea
The inability to breathe easily unless one is sitting up straight or standing erect
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Show more- Clinical Research Center (CRC) A key resource for clinical research. Also called a General Clinical Research Center (GCRC). One in a…
- Hygieia The science of preventive medicine and the preservation of health. From the name of Hygeia, the daughter of…
- Selfish operon A hypothesis according to which the clustering of genes and their subsequent organization into operons is…
- Mental retardation and clasped thumbs A syndrome with the following characteristic features:(1) Neurological: Mental retardation and aphasia (lack…
- Fish-odor syndrome An inborn error of metabolism associated with an offensive body odor, the smell of rotting fish, due to the…
- Disease, bipolar See: Bipolar disorder
- Chlorinated camphene See: Toxaphene
- Molecule The smallest unit of a substance that can exist alone and retain the character of that substance.
- Brain stem The stemlike part of the brain that is connected to the spinal cord. Or conversely, the extension of the…
- X (in genetics) Although the letter X can be used as a symbol in various ways (such as with X-rays, the X-axis of a graph…
- Dexfenfluramine A weight loss drug, in a class of drugs called anorectics which decrease appetite. This drug, sold in the US…
- Magnetic resonance perfusion imaging A special type of magnetic resonance imaging (MRI) that uses an injected dye in order to see blood flow…